The tidelands surrounding the Swinomish Reservation are an important cultural, environmental, and subsistence resource for the Tribe.
As part of the Water Resources Program committment to water quality monitoring, comprehensive tideland resource monitoring is conducted including: testing shellfish (clams) for paralytic shellfish poisoning (PSP); surveying reservation beaches for clam population health and distribution; testing shellfish for bioaccumulate toxics; monitoring the nearshore environment for fish habitat and environmental health; monitoring the effectiveness of Spartina sp. eradication techniques on reservation.